I think so many of us would love to see those first ships we had be able to come back as a fleet version, or perhaps a C-Store level 50 version. The Constitution, Oberth, NX-Class, and the Miranda (my personal favorite). Perhaps as a kicker, a special ship interior could be made availible like with the San Paulo (Belfast), and Constitution ships.

I understand the confusion as the original Constellation was a Constitution class (Decker tried to use it to destroy the doomsday machine)

Correction, Decker used one of the Enterprise's shuttles. After seeing the effect on the Doomsday Machine after Decker's kamikaze run, Kirk seized on using the Constellation and had Scotty rig her to explode.